Efficiency and preference at a bird feeder Author Robert MacArthur Article Date February 1972 Journal Title J Ariz Acad Sci
California Condor and other birds form Stanton Cave, Arizona Author P. W. Parmalee Article Date October 1969 Journal Title J Ariz Acad Sci
Cactus birds Author M. S. Keasey, III Article Date November-December 1974 Article Abstract Wrens, thrashers, and doves Journal Title Pacific Discovery
Birds seen in the Salt and Gila Rivers region Arizona in March and April, 1933 Author T. S. Roberts Article Date August 1935 Journal Title Ariz Wild Life